Login| Sign Up| Help| Contact|

Patent Searching and Data


Title:
LINEAR ACTUATOR
Document Type and Number:
WIPO Patent Application WO/2017/154790
Kind Code:
A1
Abstract:
Provided is a linear actuator capable of eliminating problems in terms of layout and inhibiting fade phenomena and the like when the linear actuator is mounted on a vehicle or the like. An abnormality determination means (108) determines if there is an abnormality in each load detection means (Sa, Sb). When the two load detection means (Sa, Sb) are both normal, a normality control unit (110) controls a motor (30) using the summed value of loads detected by the two load detection means (Sa, Sb). If it is determined that one of the load detection means Sa (Sb) is abnormal, an abnormality control unit (111) estimates the load being produced in two linear motion mechanisms from the motor rotation angle, the motor current, and the load detected by the normal load detection means Sb(Sa). The abnormality control unit (111) controls the motor (30) using the estimated load values.

More Like This:
Inventors:
YAMASAKI, Tatsuya (1578 Higashikaizuka, Iwata-sh, Shizuoka 10, 〒4388510, JP)
MURAMATSU, Makoto (1578 Higashikaizuka, Iwata-sh, Shizuoka 10, 〒4388510, JP)
Application Number:
JP2017/008565
Publication Date:
September 14, 2017
Filing Date:
March 03, 2017
Export Citation:
Click for automatic bibliography generation   Help
Assignee:
NTN CORPORATION (3-17, Kyomachibori 1-chome Nishi-ku, Osaka-sh, Osaka 03, 〒5500003, JP)
International Classes:
B60T8/88; B60T13/74; F16D65/18; F16D121/24; F16D125/34
Foreign References:
JPH03500918A1991-02-28
JP2013083550A2013-05-09
Attorney, Agent or Firm:
SUGIMOTO, Shuji et al. (Higobashi Nittai Bldg, 10-2 Edobori 1-chome, Nishi-ku, Osaka-sh, Osaka 02, 〒5500002, JP)
Download PDF: